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Arai K, Okumura M, Lee YH, Katayama H, Mizutani K, Lin Y, Park SY, Sawada K, Toyoda M, Hojo H, Inaba K, Iwaoka M. Diselenide-bond replacement of the external disulfide bond of insulin increases its oligomerization leading to sustained activity. Commun Chem 2023; 6:258. [PMID: 37989850 PMCID: PMC10663622 DOI: 10.1038/s42004-023-01056-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 11/07/2023] [Indexed: 11/23/2023] Open
Abstract
Seleno-insulin, a class of artificial insulin analogs, in which one of the three disulfide-bonds (S-S's) of wild-type insulin (Ins) is replaced by a diselenide-bond (Se-Se), is attracting attention for its unique chemical and physiological properties that differ from those of Ins. Previously, we pioneered the development of a [C7UA,C7UB] analog of bovine pancreatic insulin (SeIns) as the first example, and demonstrated its high resistance against insulin-degrading enzyme (IDE). In this study, the conditions for the synthesis of SeIns via native chain assembly (NCA) were optimized to attain a maximum yield of 72%, which is comparable to the in vitro folding efficiency for single-chain proinsulin. When the resistance of BPIns to IDE was evaluated in the presence of SeIns, the degradation rate of BPIns became significantly slower than that of BPIns alone. Furthermore, the investigation on the intermolecular association properties of SeIns and BPIns using analytical ultracentrifugation suggested that SeIns readily forms oligomers not only with its own but also with BPIns. The hypoglycemic effect of SeIns on diabetic rats was observed at a dose of 150 μg/300 g rat. The strategy of replacing the solvent-exposed S-S with Se-Se provides new guidance for the design of long-acting insulin formulations.
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Affiliation(s)
- Kenta Arai
- Department of Chemistry, School of Science, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa, 259-1292, Japan.
- Institute of Advanced Biosciences, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa, 259-1292, Japan.
| | - Masaki Okumura
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3, Aramakiaza Aoba, Aoba-ku, Sendai, 980-8578, Japan
| | - Young-Ho Lee
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, 162, Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-si, 28119, Korea
- Bio-Analytical Science, University of Science and Technology, 217, Gajeong-ro, Yuseong-gu, Daejeon, 34113, Korea
- Graduate School of Analytical Science and Technology, Chungnam National University, 99, Daehak-ro, Yuseong-gu, Daejeon, 34134, Korea
- Research Headquarters, Korea Brain Research Institute, 61, Cheomdan-ro, Dong-gu, Daegu, 41068, Korea
| | - Hidekazu Katayama
- Department of Bioengineering, School of Engineering, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa, 259-1292, Japan
| | - Kenji Mizutani
- Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro, Tsurumi, Yokohama, 230-0045, Japan
| | - Yuxi Lin
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, 162, Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-si, 28119, Korea
| | - Sam-Yong Park
- Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro, Tsurumi, Yokohama, 230-0045, Japan
| | - Kaichiro Sawada
- Division of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine, Tokai University, School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Masao Toyoda
- Division of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine, Tokai University, School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Hironobu Hojo
- Institute for Protein Research, Osaka University, Yamadaoka, Suita-shi, Osaka, 565-0871, Japan
| | - Kenji Inaba
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Aoba-ku, Sendai, 2-1-1, Japan
- Medical Institute of Bioregulation, Kyushu University, Fukuoka, 812-8582, Japan
| | - Michio Iwaoka
- Department of Chemistry, School of Science, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa, 259-1292, Japan.
- Institute of Advanced Biosciences, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa, 259-1292, Japan.
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Abstract
The pancreatic peptide hormone insulin, first discovered exactly 100 years ago, is essential for glycemic control and is used as a therapeutic for the treatment of type 1 and, increasingly, type 2 diabetes. With a worsening global diabetes epidemic and its significant health budget imposition, there is a great demand for new analogues possessing improved physical and functional properties. However, the chemical synthesis of insulin's intricate 51-amino acid, two-chain, three-disulfide bond structure, together with the poor physicochemical properties of both the individual chains and the hormone itself, has long represented a major challenge to organic chemists. This review provides a timely overview of the past efforts to chemically assemble this fascinating hormone using an array of strategies to enable both correct folding of the two chains and selective formation of disulfide bonds. These methods not only have contributed to general peptide synthesis chemistry and enabled access to the greatly growing numbers of insulin-like and cystine-rich peptides but also, today, enable the production of insulin at the synthetic efficiency levels of recombinant DNA expression methods. They have led to the production of a myriad of novel analogues with optimized structural and functional features and of the feasibility for their industrial manufacture.
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Sun J, Song C, Ma D, Shen S, Huo S. Expanding the Toolbox for Peptide Disulfide Bond Formation via l-Methionine Selenoxide Oxidation. J Org Chem 2021; 86:4035-4044. [PMID: 33620221 DOI: 10.1021/acs.joc.0c02877] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this study, l-methionine selenoxide (MetSeO) was used as an oxidant for the construction of peptide disulfide bonds. Excellent yields for various disulfide-containing peptides were achieved via the MetSeO oxidation method in different solvents and on a resin. Most importantly, the construction of disulfide bonds can be performed in the trifluoroacetic acid cocktail used for the cleavage of peptides from the resin, which obviates the steps of peptide purification and lyophilization. This facilitates and simplifies the synthesis of disulfide-containing peptides. Kinetic and mechanistic studies of the reaction between MetSeO and dithiothreitol (DTT, a model compound of dicysteine-containing peptide) show that the reaction is first order in both [MetSeO] and [DTT], and a reaction mechanism is proposed that can help us gain insights into the reaction of the oxidative synthesis of disulfide bonds via MetSeO oxidation.
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Affiliation(s)
- Jingjing Sun
- College of Chemistry and Environmental Science, Key Laboratory of Analytical Science and Technology of Hebei Province, and MOE Key Laboratory of Medicinal Chemistry and Molecular Diagnostics, Hebei University, Baoding 071002, Hebei Province, P. R. China
| | - Changying Song
- College of Chemistry and Environmental Science, Key Laboratory of Analytical Science and Technology of Hebei Province, and MOE Key Laboratory of Medicinal Chemistry and Molecular Diagnostics, Hebei University, Baoding 071002, Hebei Province, P. R. China
| | - Dongying Ma
- College of Chemistry and Environmental Science, Key Laboratory of Analytical Science and Technology of Hebei Province, and MOE Key Laboratory of Medicinal Chemistry and Molecular Diagnostics, Hebei University, Baoding 071002, Hebei Province, P. R. China
| | - Shigang Shen
- College of Chemistry and Environmental Science, Key Laboratory of Analytical Science and Technology of Hebei Province, and MOE Key Laboratory of Medicinal Chemistry and Molecular Diagnostics, Hebei University, Baoding 071002, Hebei Province, P. R. China
| | - Shuying Huo
- College of Chemistry and Environmental Science, Key Laboratory of Analytical Science and Technology of Hebei Province, and MOE Key Laboratory of Medicinal Chemistry and Molecular Diagnostics, Hebei University, Baoding 071002, Hebei Province, P. R. China
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Smith MK, Chieu HD, Aizen J, Mos B, Motti CA, Elizur A, Cummins SF. A Crown-of-Thorns Seastar recombinant relaxin-like gonad-stimulating peptide triggers oocyte maturation and ovulation. Gen Comp Endocrinol 2019; 281:41-48. [PMID: 31102581 DOI: 10.1016/j.ygcen.2019.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 05/04/2019] [Accepted: 05/14/2019] [Indexed: 12/31/2022]
Abstract
The Acanthaster planci species-complex [Crown-of-Thorns Seastar (COTS)] are highly fecund echinoderms that exhibit population outbreaks on coral reef ecosystems worldwide, including the Australian Great Barrier Reef. A better understanding of the COTS molecular biology is critical towards efforts in controlling outbreaks and assisting reef recovery. In seastars, the heterodimeric relaxin-like gonad stimulating peptide (RGP) is responsible for triggering a neuroendocrine cascade that regulates resumption of oocyte meiosis prior to spawning. Our comparative RNA-seq analysis indicates a general increase in RGP gene expression in the female radial nerve cord during the reproductive season. Also, the sensory tentacles demonstrate a significantly higher expression level than radial nerve cord. A recombinant COTS RGP, generated in a yeast expression system, is highly effective in inducing oocyte germinal vesicle breakdown (GVBD), followed by ovulation from ovarian fragments. The findings of this study provide a foundation for more in-depth molecular analysis of the reproductive neuroendocrine physiology of the COTS and the RGP.
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Affiliation(s)
- Meaghan K Smith
- GeneCology Research Centre, University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, Queensland 4556, Australia
| | - Hoang Dinh Chieu
- GeneCology Research Centre, University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, Queensland 4556, Australia
| | - Joseph Aizen
- The School of Marine Science, Ruppin Academic Centre, 4029700 Michmoret, Israel; GeneCology Research Centre, University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, Queensland 4556, Australia
| | - Benjamin Mos
- National Marine Science Centre, Southern Cross University, 2 Bay Drive, Coffs Harbour, NSW 2450, Australia
| | - Cherie A Motti
- Australian Institute of Marine Science (AIMS), Cape Ferguson, Townsville, Queensland 4810, Australia
| | - Abigail Elizur
- GeneCology Research Centre, University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, Queensland 4556, Australia
| | - Scott F Cummins
- GeneCology Research Centre, University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, Queensland 4556, Australia.
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Katayama H, Nagasawa H. Chemical synthesis of N-glycosylated insulin-like androgenic gland factor from the freshwater prawn Macrobrachium rosenbergii. J Pept Sci 2019; 25:e3215. [PMID: 31515898 DOI: 10.1002/psc.3215] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/01/2019] [Accepted: 08/25/2019] [Indexed: 12/27/2022]
Abstract
Crustacean insulin-like androgenic gland factor (IAG) of Macrobrachium rosenbergii, a heterodimeric peptide having both four disulfide bonds and an N-linked glycan, was synthesized by the combination of solid-phase peptide synthesis and the regioselective disulfide formation reactions. The disulfide isomer of IAG could also be synthesized by the same manner. The conformational analysis of these peptides by circular dichroism (CD) spectral measurement indicated that the disulfide bond arrangement affected the peptide conformation in IAG. On the other hand, the N-linked glycan attached at A chain showed no effect on CD spectra of IAG. This is the first report for the chemical synthesis of insulin-like heterodimeric glycopeptide having three interchain disulfides, and the synthetic strategy shown here might be useful for the synthesis of other glycosylated four-disulfide insulin-like peptides.
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Affiliation(s)
- Hidekazu Katayama
- Department of Applied Biochemistry, School of Engineering, Tokai University, Hiratsuka, Japan
| | - Hiromichi Nagasawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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Brunel FM, Mayer JP, Gelfanov VM, Zaykov AN, Finan B, Perez-Tilve D, DiMarchi RD. A Disulfide Scan of Insulin by [3 + 1] Methodology Exhibits Site-Specific Influence on Bioactivity. ACS Chem Biol 2019; 14:1829-1835. [PMID: 31343157 DOI: 10.1021/acschembio.9b00420] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Insulin is the principal hormone involved in the regulation of metabolism and has served a seminal role in the treatment of diabetes. Building upon advances in insulin synthetic methodology, we have developed a straightforward route to novel insulins containing a fourth disulfide bond in a [3 + 1] fashion establishing the first disulfide scan of the hormone. All the targeted analogs accommodated the constraint to demonstrate an unexpected conformational flexibility of native insulin. The bioactivity was established for the constrained (4-DS) and unconstrained (3-DS) analogs by in vitro methods, and extended to in vivo study for select peptides. We also identified residue B10 as a preferred anchor to introduce a tether that would regulate insulin bioactivity. We believe that the described [3 + 1] methodology might constitute the preferred approach for performing similar disulfide scanning in peptides that contain multiple disulfides.
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Affiliation(s)
- Florence M. Brunel
- Novo Nordisk Research Center, Indianapolis, Indiana 46241, United States
| | - John P. Mayer
- Novo Nordisk Research Center, Indianapolis, Indiana 46241, United States
| | - Vasily M. Gelfanov
- Novo Nordisk Research Center, Indianapolis, Indiana 46241, United States
| | | | - Brian Finan
- Novo Nordisk Research Center, Indianapolis, Indiana 46241, United States
| | - Diego Perez-Tilve
- Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio 45267, United States
| | - Richard D. DiMarchi
- Novo Nordisk Research Center, Indianapolis, Indiana 46241, United States
- Department, of Chemistry,Indiana University, Bloomington, Indiana 47405, United States
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Katayama H, Mukainakano T, Kogure J, Ohira T. Chemical synthesis of the crustacean insulin-like peptide with four disulfide bonds. J Pept Sci 2018; 24:e3132. [PMID: 30346100 DOI: 10.1002/psc.3132] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 09/11/2018] [Accepted: 09/19/2018] [Indexed: 01/02/2023]
Abstract
Among the insulin-family peptides, two additional cysteine residues other than six conserved cysteines are sometimes found in invertebrate insulin-like peptides (ILPs), although the synthetic method for such four disulfide ILPs has not yet been well established. In this study, we synthesized a crustacean insulin-like androgenic gland factor with four disulfides by the regioselective disulfide bond formation reactions using four orthogonal Cys-protecting groups. Its disulfide isomer could be also synthesized by the same method, indicating that the synthetic strategy developed in this study might be useful for the synthesis of other four disulfide ILPs.
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Affiliation(s)
- Hidekazu Katayama
- Department of Applied Biochemistry, School of Engineering, Tokai University, Hiratsuka, Japan
| | - Takafumi Mukainakano
- Department of Applied Biochemistry, School of Engineering, Tokai University, Hiratsuka, Japan
| | - Junya Kogure
- Department of Biological Sciences, Faculty of Science, Kanagawa University, Hiratsuka, Japan
| | - Tsuyoshi Ohira
- Department of Biological Sciences, Faculty of Science, Kanagawa University, Hiratsuka, Japan
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